Dewgong learns Dive at level 45.
Seel evolves into Dewgong at level 34.
It doesn't. The only way you can teach it this is if your playing Black,White,Ruby,Sapphire,Emerald and you teach it HM08/HM06
it needs level 18 if it did not learn it at level 12 when it was a shinx
It doesnt learn it by level, but you can teach a tm, its tm45
He can't learn flamethrower.But you can give him a TM (flamethrower).
dewgong learns dive at lv.41.
level 47 is when dewgong will learn ice beam
There's no TM dive in pokemon fire red but there is in emerald, saphirre and ruby. But the way is to level up pokemon (seel level 41,dewgong level 45) to get TM dive (in firered).
Level 51.
It learns it via TM.
You can teach dive by via move tuter in platinum, heartgold, and soulsilver For colosseum and XD i dont think there is no HM Dive but you can teach them Dive in RSE nearly any water type can learn this move in gen 3 In gen 4 these pkmn can learn dive by a certain level: Seel 41 Dewgong 45 Wailmer 41 Wailord 46 Huntail 37 Gorebyss 37 Relicanth 57 Phione 61 Manaphy 61
Unfortunately Dive is not a HM unlike in Ruby Sapphire and Emerald. However Pokemon learn the move with no out of battle effect. Seel Level 41 Dewgong Level 41 Wailmer Level 41 Wailord Level 46 Huntail Level 37 Gorebyss Level 37 Relicanth Level 57 Phione Level 61 Manaphy Level 61
Seel evolves to Dewgong at level 34.
It can't learn it whatsoever
you can learn HMs at any level, but only if you have a compatible pokemon.
Dive is not an HM/TM anymore so it can't learn dive, but you can get it from a different region so if you trade a Pokemon holding that move then take it off them it can learn dive.
The pre-evolution of Dewgong is Seel. Seel evolves into Dewgong at level 34.